Jimmy can walk 2/9 of a mile in 2/9 of an hour. How fast does he walk in miles/hour
1 answer:
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Answer:
Step-by-step explanation:
Given
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Required
The lower limit 94% confidence interval
First, calculate the mean
Next, calculate the standard deviation using:
So, we have:
For 94% interval, the z score is
So, the margin of error (E) is:
The confidence interval of the true mean is:
The lower limit (L) is:
and the upper limit (U) is
First find the area of the triangle.
ABCE is a parallelogram, this means that the area of triangle ABE is equal to the area of triangle EBC. The are of the entire trapezoid is 180 square centimeters, we already found the area of the triangle, so that leaves us with:
So the area of the entire parallelogram must be 144 square centimeters. So each half of the parallelogram must be equal to:
ABCE is a parallelogram, this means that the area of triangle ABE is equal to the area of triangle EBC. The are of the entire trapezoid is 180 square centimeters, we already found the area of the triangle, so that leaves us with:
So the area of the entire parallelogram must be 144 square centimeters. So each half of the parallelogram must be equal to: